StopIteration: error when viewing rev tree

[paresh.solanki@…]

How to Reproduce

While doing a GET operation on /revtree, Trac issued an internal error.

I have recently upgraded from Trac 0.11.2.1 (postgresSQL backend) and decided to try this plugin from the 0.12 branch.

The install went well, but when I clicked on the menu bar for RevTree, I got this error after a long delay (over 2 minutes)

User agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9.2.8) Gecko/20100722 Firefox/3.6.8 ( .NET CLR 3.5.30729)

System Information

Trac	0.12
Trac	0.12
CustomFieldAdmin	0.2.3
Genshi	0.6
mod_wsgi	2.8 (WSGIProcessGroup WSGIApplicationGroup %(GLOBAL))
psycopg2	2.2.2
Pygments	1.3.1
Python	2.6.5 (r265:79063, Apr 16 2010, 14:15:55) [GCC 4.4.3]
Python	2.6.5 (r265:79063, Apr 16 2010, 14:15:55) [GCC 4.4.3]
RPC	1.1.0-r7971
setuptools	0.6c11
setuptools	0.6c11
Subversion	1.6.6 (r40053)
jQuery	1.4.2

Enabled Plugins

AdminEnumListPlugin	1.0
AdvancedTicketWorkflowPlugin	0.10dev-r7701
AnnouncerPlugin	1.0-a1
AutocompleteUsers	0.4.1
cc-selector	0.0.2
ChangeLogMacro	0.2-r7927
CodeExample	0.4.2
DataSaverPlugin	1.0
ExtendedVersionTracPlugin	0.0
FootNoteMacro	1.02
graphviz	0.7.6dev
IncludeSource	0.1
IniAdmin	0.2
Lineno	1.0
parametrizedtemplates	N/A
ProjectPlan	0.83
TicketImport	0.8
TracAcronyms	0.1
TracAdvParseArgsPlugin	0.4
Tracbacks	0.1
TracCollapsiblePlugin	0.1
TracCondFields	2.0
TracCsvMacro	1.0
TracCustomFieldAdmin	0.2.3
TracCustomRoadmap	0.4
TracDeveloper	0.2
TracDiscussion	0.7-r8310
TracDownloads	0.3
TracDragDrop	0.12.0.3-r8116
TracDupPlugin	0.1.1
TracExtractUrl	0.2.7030
TracListOfWikiPagesMacro	0.4
TracMasterTickets	3.0.1
TracMetrixPlugin	0.1.8
TracMyPagePlugin	0.11.1.1
TracNewsFlash	1.0.1
TracNumberedHeadlinesPlugin	0.4
TracRevtreePlugin	0.6.4dev-r8057
TracSectionEditPlugin	0.1
TracTerminologyPlugin	0.1
TracTocMacro	11.0.0.3
TracUserPagePlugin	0.11.1.1
TracWikiGoodies	0.11.0.3dev
TracWysiwyg	0.12.0.2-r8148
TracXMLRPC	1.1.0-r7971
WantedPages	0.4dev
WikifyAnythingPlugin	0.2
WikiTableMacro	0.1
WorkflowEditorPlugin	1.0.2-r6348

Python Traceback

Traceback (most recent call last):
  File "build/bdist.linux-x86_64/egg/trac/web/main.py", line 513, in _dispatch_request
    dispatcher.dispatch(req)
  File "build/bdist.linux-x86_64/egg/trac/web/main.py", line 235, in dispatch
    resp = chosen_handler.process_request(req)
  File "build/bdist.linux-x86_64/egg/revtree/web_ui.py", line 246, in process_request
    return self._process_revtree(req)
  File "build/bdist.linux-x86_64/egg/revtree/web_ui.py", line 356, in _process_revtree
    repos.build(self.bcre, revrange=(oldest, youngest))
  File "build/bdist.linux-x86_64/egg/revtree/model.py", line 446, in build
    info = Changeset.get_chgset_info(vc)
  File "build/bdist.linux-x86_64/egg/revtree/model.py", line 51, in get_chgset_info
    item = chgit.next()
StopIteration

[paresh.solanki@…]

Ok, I can get this to work by setting the oldest revision to 7000 (we're on 8000+ revisions at the moment)

But on first clicking the rev tree option, I get the message:

Selected filters cannot render a revision tree

If I then press update (do not change any filter options), I get the rev tree I was after.

[paresh.solanki@…]

When this fails (eg when clicking the rev tree menu item), the url is http://trac.netprod.bellfruit.local/trac/revtree

If I then change the url to http://trac.netprod.bellfruit.local/trac/revtree?author= it works.

After clicking the update button, the url contains the expected filter parameters and therefore works also.